Notice Regarding Personnel Changes | RIBOMIC Inc. (4591) timely disclosure

Worth reading

30Immaterial

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Neutral

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Scale

—

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Wording

Definitive

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Who is moving to which position

Resolved 9 June 2026

Incoming appointee

2 items

Scheduled Appointment DateEffective 23 June 2026

Nishikido Taro (錦戸太郎)

Previous positionExecutive Officer, General Manager of the Human Resources and General Affairs Department, and Head of the Internal Audit Office

New positionExecutive Officer and General Manager of the Administration Division, and General Manager of the Human Resources and General Affairs Department

Yamamoto Rumi (山本留美)

Previous positionManager of the Finance and Accounting Department and Manager of the Internal Audit Department

New positionHead of the Internal Audit Office and Manager of the Finance and Accounting Department

Reason for change

As stated in the Notice Regarding Changes in Officer Appointments Accompanying the Transition to a Company with an Audit and Supervisory Committee announced on 14 April 2026, these personnel changes accompany the scheduled retirement of the current Director, Executive Officer and General Manager of the Administration Division.

Who is moving to which position
Item	Details
Resolution date	9 June 2026
Scheduled Appointment Date	Effective 23 June 2026
Name of appointee	Nishikido Taro (錦戸太郎), Yamamoto Rumi (山本留美)
Appointee's new position	Executive Officer and General Manager of the Administration Division, and General Manager of the Human Resources and General Affairs Department, Head of the Internal Audit Office and Manager of the Finance and Accounting Department
Appointee's previous position	Executive Officer, General Manager of the Human Resources and General Affairs Department, and Head of the Internal Audit Office, Manager of the Finance and Accounting Department and Manager of the Internal Audit Department
Reason for change	As stated in the Notice Regarding Changes in Officer Appointments Accompanying the Transition to a Company with an Audit and Supervisory Committee announced on 14 April 2026, these personnel changes accompany the scheduled retirement of the current Director, Executive Officer and General Manager of the Administration Division.

Items this document does not state (15)

Date of departureAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeName of departing officerFormer position of departing officerNew position of departing officerReason for departureWhether the incumbent will remain in officeReasons for appointmentNumber of directors after the changeFiling as an independent officerDetails of organizational changesChange in Corporate Governance StructureSubject to Approval by the General Meeting of Shareholders

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Personnel changes accompanying the scheduled retirement of the current Director, Executive Officer and General Manager of the Administration Division, as stated in the Notice Regarding Changes in Officer Appointments Accompanying the Transition to a Company with an Audit and Supervisory Committee, announced on 14 April 2026.

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